Determination of Mn, Cu, Ni, Cr, Mo, V, Ti and Al in Steel by Atomic-Absorption Spectrophotometry

Abstract

by Atomic-Absorption SpectrophotometryYoshihide ENDO, Toshihiko HATA and Yuki NAKAHARA Synopsis :An accurate, precise and rapid method has been presented for the atomic absorption spectrophotometric determination of Mn, Cu, Ni, Cr, Mo, V, Ti and Al in steel.The sample is dissolved in acid. The solution prepared to volume and aliquot is subjected to the atomic absorption analysis of Mo, V, Ti and Al by nitrous-oxide acetylene flame and other elements by air acetylene flame referring to the calibration curves.Influenced by large amounts of Fe and other elements, the determination of Cr and Mo should be done in the presence of the suppressor, NH4C1 for Cr and K2SO4 for Mo.On the determination of Ti, Al was added both for the enhancement of sensitivity and the suppression of other elements.The apparatus employed was a Nippon Jarrell-ash AA-I type with a water cooling fish tail burner having a solot 0.4mm by 50mm.

Ferrous metallurgy

“…MANGANESE Atomic Absorption. Manganese has been determined in a wide range of alloys, slags, and ores over a wide concentration range with atomic absorption techniques (57,111,128,149,184,186,199,253,257,288,289,391,392,509).…”

“…In almost all cases, an additive such as a chloride salt is added to the solution to overcome interferences (83,110,111,186,199,253,382).…”

“…Atomic Absorption. Nickel is another element being routinely de-termined in a large number of laboratories by atomic absorption techniques (76,109,111,123,186,199,253,289,391,393).…”

“…Schemes of analysis of steel by dissolution of the sample were presented (76,111,123,186,199,253,337,391,392) and even the newer technique of direct analysis of the solid sample was investigated (57). Other materials which can be analyzed by atomic absorption procedures include ferrosilicon (289), ores (109,149,257,288), and slags (257, 288).…”